trap density
41Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
42Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal …
43Venus — /vee neuhs/, n., pl. Venuses for 2. 1. an ancient Italian goddess of gardens and spring, identified by the Romans with Aphrodite as the goddess of love and beauty. 2. an exceptionally beautiful woman. 3. (sometimes l.c.) Archaeol. a statuette of… …
44Tyronza, Arkansas — Infobox Settlement official name = Tyronza, Arkansas settlement type = Town imagesize = image caption = image imagesize = image caption = image mapsize = 250px map caption = Location in Poinsett County and the state of Arkansas mapsize1 = map… …
45Ore genesis — The various theories of ore genesis explain how the various types of mineral deposits form within the Earth s crust. Ore genesis theories are very dependent on the mineral or commodity. Ore genesis theories generally involve three components:… …
46Dodson, Louisiana — Coordinates: 32°04′40″N 92°39′40″W / 32.07778°N 92.66111°W / 32.07778; 92.66111 …
47Pinguicula moranensis — Taxobox name = Pinguicula moranensis image width = 275px image caption = In habitat in Oaxaca regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Lamiales familia = Lentibulariaceae genus = Pinguicula species = P. moranensis… …
48Sirte Basin — The Sirte Basin is a late Mesozoic and Tertiary triple junction continental rift (extensional basin) along northern Africa that was initiated during the late Jurassic Period. It borders a relatively stable Paleozoic craton and cratonic sag basins …
49crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… …
50Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… …
